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Official data from INPI

SACOLA DE DEPÓSITO

Em ExigênciaInvention Patent

Application data

Number

PI8400701

Type

Invention Patent

Filing

02/16/1984

Publication

09/25/1984

Progress at the INPI

  1. Filing02/16/84
  2. Publication09/25/84
  3. Examination08/05/86
  4. Allowance06/25/91
  5. Grant12/31/91
  6. Expired07/08/08

The letters patent expired on 07/08/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/08/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Fresenius AG

DE

See this company's full portfolio

Inventors

R. H. (pessoa física)

DE

Technical data

IPC Classification

Priority claims

DE

P 33 05 365.0 · 02/17/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

6.2

09/08/1987

RPI 881

Solicitação de exame técnico

#4.1

08/05/1986

RPI 824

Publicação do pedido de patente

#3.1

09/25/1984

RPI 727

Pedido de patente depositado

#2.1

05/08/1984

RPI 707

Carta-patente expirada

#21.1

Patente extinta em 16/02/99

07/08/2008

RPI 1957

Concessão da patente

#16.1

12/31/1991

RPI 1100

Notificação para pagamento de retribuição

#13.1

10/22/1991

RPI 1090

Republicação - classificação IPC

#15.11

10/01/1991

RPI 1087

Deferimento

#9.1

06/25/1991

RPI 1073

Exigência - art. 36 da LPI

#6.1

10/09/1990

RPI 1036

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